fix minor change to Borland intall instructions

[wxWidgets.git] / configure.in

diff --git a/configure.in b/configure.in
index 24673db5f2f089e948e290757b59113035c6dd8e..0573abd13d2c850170fe886095f849099c776983 100644 (file)
--- a/configure.in
+++ b/configure.in
@@ -73,6 +73,7 @@ dnl ------------------------------------------------------------------------
 
 dnl OS (assume Unix)
 USE_UNIX=1
+USE_OS2=0
 USE_WIN32=0
 USE_DOS=0
 USE_BEOS=0
@@ -288,12 +289,12 @@ case "${host}" in
 
   *-pc-os2_emx | *-pc-os2-emx )
     AC_DEFINE(__EMX__)
+    USE_OS2=1
     PROGRAM_EXT=".exe"
     DEFAULT_DEFAULT_wxUSE_PM=1
     dnl "c++" wrapper is not always available, so always use plain gcc.
     CXX=gcc
-    dnl Explicitly link -lstdcpp, since we are using "gcc" not "g++"/"c++".
-    LIBS="$LIBS -lstdcpp"
+    LDFLAGS="$LDFLAGS -Zcrtdll -Zsysv-signals"
     dnl
     dnl Some special code that's automatically added by autoconf-2.57 for OS/2
     dnl and hopefully also by autoconf-2.58 and newer on all other platforms.
@@ -1448,6 +1449,8 @@ AC_PROG_LN_S
 dnl ---------------------------------------------------------------------------
 dnl When we are using gcc on OS/2, we want to be either using resources (PM)
 dnl or a more complete POSIX emulation for Motif/GTK+/X11
+dnl Moreover we need to link explicitly against either stdcpp.a or stdcxx.a
+dnl (depending on compiler version), since we are using "gcc", not "g++/c++".
 dnl ---------------------------------------------------------------------------
 dnl (OS/2-only piece)
 case "${host}" in
@@ -1460,6 +1463,26 @@ case "${host}" in
           dnl Include resources for the "native" port (wxPM).
           RESPROGRAMOBJ="\${top_srcdir}/include/wx/os2/wx.res"
       fi
+      AC_CACHE_CHECK([for gcc 3 or later], wx_cv_gcc3,[
+          AC_TRY_COMPILE([#include <features.h>],
+              [
+                  #if (__GNUC__ < 3)
+                      #error old gcc
+                  #endif
+              ],
+              [
+                  wx_cv_gcc3=yes
+              ],
+              [
+                  wx_cv_gcc3=no
+              ]
+          )
+      ])
+      if test "$wx_cv_gcc3" = "no"; then
+          LIBS="$LIBS -lstdcpp"
+      else
+          LIBS="$LIBS -lstdcxx"
+      fi
   ;;
 esac
 dnl (end of OS/2-only piece)
@@ -1525,7 +1548,7 @@ case "${host}" in
 esac
 
 if test "$wxUSE_GUI" = "yes"; then
-    if test "$wxUSE_UNIX" = "yes"; then
+    if test "$wxUSE_UNIX" = "yes" -a "$wxUSE_PM" != 1; then
         dnl defines HAVE_X11_XKBLIB_H
         AC_CHECK_HEADERS(X11/Xlib.h)
         AC_CHECK_HEADERS([X11/XKBlib.h], [], [], 
@@ -2789,8 +2812,6 @@ equivalent variable and GTK+ is version 1.2.3 or above.
     if test "$wxUSE_PM" = 1; then
         TOOLKIT=PM
         GUIDIST=GTK_DIST
-        AC_MSG_WARN([OS/2 threads are not yet supported... disabled])
-        wxUSE_THREADS="no"
     fi
 
     dnl the name of the directory where the files for this toolkit live
@@ -3745,12 +3766,13 @@ dnl flush the cache
 AC_CACHE_SAVE
 
 dnl ---------------------------------------------------------------------------
-dnl thread support for Unix (for Win32 see past the next matching "else")
+dnl thread support for Unix (for Win32 and OS/2 see past
+dnl                          the next matching "else")
 dnl ---------------------------------------------------------------------------
 
 dnl under MSW (except mingw32) we always have thread support
 CPP_MT_FLAG=
-if test "$TOOLKIT" != "MSW"; then
+if test "$TOOLKIT" != "MSW" -a "$USE_OS2" != 1; then
 
     dnl the code below:
     dnl
@@ -4071,6 +4093,11 @@ else
                 CFLAGS="$CFLAGS_OLD"
             fi
         ;;
+        *-pc-os2*emx )
+            CFLAGS="$CFLAGS -Zmt -D__ST_MT_ERRNO__"
+            CXXFLAGS="$CXXFLAGS -Zmt -D__ST_MT_ERRNO__"
+            LDFLAGS="$LDFLAGS -Zmt"
+        ;;
       esac
     fi
 fi
@@ -4701,7 +4728,7 @@ dnl DLL support
 dnl ------------------------------------------------------------------------
 
 dnl under MSW we always have LoadLibrary/GetProcAddress
-if test "$TOOLKIT" != "MSW"; then
+if test "$TOOLKIT" != "MSW" -a "$USE_OS2" != 1; then
 
     HAVE_DL_FUNCS=0
     HAVE_SHL_FUNCS=0